Set pair or rings close to the floor, kneel down and grab the rings, with the palms facing each (neutral), facing forward (supinated) or something in-between.
Step back into a Plank position.
Keeping the upper back domed, lean forward and down to place your elbows into your belly, below the ribcage.
Continue leaning forward while reaching the feet back until all your weight is on your hands, so that you can lift your feet and balance on your hands.
Form tips
Experiment with where your elbows need to be to create a strong fulcrum on which to balance. They may need to be closer together, or lower on the belly, to be able to balance.
Gaze forward at a spot on the floor in front of you.